The work done on a particle of mass...
Question
The work done on a particle of mass m by a force, K[x/(x^2+y^2)^3/2i^+y/(x^2+y^2)^3/2j^](K being a constant of appropriate dimensions), when the particle is taken fr
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The work done on a particle of mass ( m ) by a force, ( Kleft[frac{x}{left(x^{2}+y^{2}right)^{3 / 2}} hat{mathbf{i}}+frac{y}{left(x^{2}+y^{2}right)^{3 / 2}} hat{mathbf{j}}right](K ) being a constant of appropriate dimensions), when the particle is taken from the point ( (a, 0) ) to the point ( (0, a) ) along a circular path of radius ( a ) about the origin in the ( x ) - ( y ) plane is
(a) ( frac{2 K pi}{a} )
(b) ( frac{K pi}{a} )
(c) ( frac{K pi}{2 a} )
(d) 0

NEET/Medical Exams
Physics
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The work done on a particle of mass m by a force, K[x/(x^2+y^2)^3/2i^+y/(x^2+y^2)^3/2j^](K being a constant of appropriate dimensions), when the particle is taken from the point (a,0) to the point (0,a) along a circular path of radius a about the origin in the x - y plane is
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since, ( mathbf{F} ) is along ( mathbf{r} ) or in radial direction....(Read complete answer below..)

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